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Automatic descaling type electric water heater

An electric water heater and automatic descaling technology, applied in water heaters, fluid heaters, lighting and heating equipment, etc., can solve the problems of easy oxidation and fouling, affecting the heat exchange efficiency between electric heating tubes and water bodies, and affecting the water quality of water tanks, etc. To achieve the effect of eliminating fouling

Inactive Publication Date: 2017-12-22
胡振华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Electric water heater is a commonly used household appliance, and for the current electric water heater, its heating element is an electric heating tube; since the electric heating tube is a high-power heating component, the surface is easily oxidized and fouled when boiling water; over time, the surface of the electric heating tube will Thick fouling will not only affect the heat exchange efficiency between the electric heating tube and the water body, but also seriously affect the water quality in the water tank

Method used

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  • Automatic descaling type electric water heater
  • Automatic descaling type electric water heater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] exist figure 1 In the shown embodiment one, the automatic descaling type electric water heater includes an insulated water tank 1, and the lower part of the insulated water tank 1 is provided with a water inlet 10 and a water outlet 11; an electric heating tube 2 and a magnesium rod 3 are arranged in the insulated water tank; The electric heating tube 2 extends vertically downwards from the upper part of the heat preservation water tank along the axis of the water outlet 11; the outside of the electric heat pipe 2 is nested with a section of descaling pipe 4, and the upper end of the descaling pipe 4 is connected to the heat preservation water tank through a tension spring 5 1; the descaling pipe 4 includes a water-permeable network pipe 41 and a descaling ring 42 fixed on the inside of the water-permeable network pipe 41 and distributed equidistantly along the vertical direction; the inner ring surface of the descaling ring 42 is wrapped around the electric heating tube...

Embodiment 2

[0019] for figure 2 The second embodiment shown is different from the first embodiment in that the resistance body is a water wheel 7, and when the water wheel 7 rotates, it will drive the descaling pipe 4 to rotate together; the extension spring 5 The upper end of the upper end is connected to a rotating shaft 8 on the upper part of the thermal insulation water tank 1; thus, in the process of the outlet water flow pushing the water wheel 7, the descaling pipe 4 can be moved downwards while performing a rotary motion, so that the descaling pipe 4 The scale ring 42 rubs the surface of the electric heating tube 2 simultaneously vertically and circumferentially, further improving the descaling effect.

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Abstract

The invention provides an automatic descaling type electric water heater. The automatic descaling type electric water heater comprises a thermal insulation water tank. An electric heating pipe and a magnesium rod are arranged in the thermal insulation water tank. The electric heating pipe extends from the upper portion of the thermal insulation water tank downwards along the axis of a water outlet. The electric heating pipe is sleeved with a descaling pipe. The upper end of the descaling pipe is connected to the upper portion of the thermal insulation water tank through a tension spring. The descaling pipe comprises a pervious mesh pipe and descaling rings arranged on the inner side of the pervious mesh pipe and distributed in the vertical direction at equal intervals. The inner ring faces of the descaling rings wrap the electric heating pipe. In the descaling pipe up-down moving process, friction between the inner ring faces of the descaling rings and the outer surface of the electric heating pipe is formed; a water outlet pipe extends downwards from the water outlet of the thermal insulation water tank, and a resistance body which has resistance to water flow in the water outlet pipe and does not block the water outlet pipe is arranged in the water outlet pipe and fixedly connected with the pervious mesh pipe; and the maximum resistance of the resistance body to the water outlet flow is greater than the total friction force between all the descaling rings and the electric heating pipe. Through the electric water heater, scale on the electric heating pipe can be automatically removed so that the water quality and heat exchange efficiency of the electric water heater can be improved.

Description

technical field [0001] The invention relates to the field of household appliances, in particular to an electric water heater. Background technique [0002] Electric water heater is a commonly used household appliance, and for the current electric water heater, its heating element is an electric heating tube; since the electric heating tube is a high-power heating component, the surface is easily oxidized and fouled when boiling water; over time, the surface of the electric heating tube will Thick fouling will not only affect the heat exchange efficiency between the electric heating tube and the water body, but also seriously affect the water quality in the water tank. Contents of the invention [0003] In view of the above problems, the purpose of the present invention is to provide an automatic descaling electric water heater, which can automatically eliminate the scale on the electric heating tube, so as to improve the water quality and heat exchange efficiency of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H1/20F24H9/00F24H9/18
CPCF24H1/202F24H9/0042F24H9/1818F24H2250/02
Inventor 胡振华
Owner 胡振华